Wrench.



F. J. BOJAS.

WRENCH.

APPLICATION FILED MAR. 27, 1914.

f 5 1 a, L I 1 IIII 1 W 2 SHEETSSHEET 1.

Patented July 7, 1914.

F. J. BOJ'AS.

WRENCH.

APPLICATION FILED MAR. 27, 1914.

Patented July 7, 1914.

2 SHEETSSHBBT 2-.

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Wi bnem UNITED STATES PATENT OFFICE.

FRANK JOSEF nous, or DETROIT, momma.

WRENCH.

Specification of Letters Patent.

Application filed March 27, 1914. Serial No. 827,698.

To all whom it may concern:

Be it known that I, FRANK J. BOJAS, a citizen of the United States, residing at Detroit, in the county of Wayne and State of Michigan, have invented new and useful Improvements in Wrenches, of which the following is a specification.

The present invention relates to improvements 1n wrenches.

In carrying out my invention it is my purpose to provide a socket wrench having means whereby various sizes of sockets may be attached to or detached therefrom in an expeditious manner and will be held firmly and securelyfor operation upon a nut or bolt.

Another object of the invention is to construct a wrench, which 'includes a shank, a socket and a universal connection between the socket and shank whereby the socket may be retained at an angle with relation to the shank and also whereby the wrench may be successfully employed in corners or at angles. I

A still further object of the invention is to provide a wrench which includes a shank that is arranged upon a sleeve, spring means being provided for normally forcing one end of the shank out of sleeve, a socket for the shank, a universal connection between the socket and shank, and means arranged between the socket and shank whereby the socket may be drawn within and secured in operative position upon the sleeve.

A still further object of the invention is the construction of a wrench of this class wherein a pin is employed for securing the socket to the wrench, and means comprising a spring being also provided for co-acting with the pin for automatically forcing the pin to an unlocking position to release the socket from the wrench when desired.

With the above recited objects in View, and others which will appear as the nature of the invention is more fully understood, the im-' provement resides in the construction, combination and arrangement of parts set forth in the following specification and falling within the scope of the appended claims.

In the drawings: Figure 1 is'a perspective view illustrating my improvement employed as an ordinary socket wrench, Fig. 2 is ,a similar view illustrating the shank of the same arranged at an angle to the socket or jaw showing the manner in which the wrench may be used in close corners, or in the form of what may be termed an angular wrench, Fig. 3 is a central longitudinal sectlonal' view taken through the i wrench as shown in Fig. 1, Fig. 4 is a similar sectional view through the Wrench as illustrated in Flg. 2, Fig. 5 is a sectional view on the line 5 5 of Fig. 4, Fig. 6 is asimilar sectional view illustrating the couplln pin being forced by the spring to an unloc ing position to permit of the release and removal of the socket from the universal connection, Fig. 7 1s a detail perspective view of one of the socket members, Fig. 8 is a similar perspective view of the universal connecting member, Fig. 9 is a similar view of the coupling pin with its spring thereon, Fig. 10 is a similar View of the shank of the wrench, the spring and washer or flange being arranged upon the same, and Fig. 11 is a similar view of the sleeve looking toward the lower or wider end thereof.

My improved wrench includes a rounded shank 1 which is provided at one of its ends with a centrally arranged longitudinally extending threaded slot 2 which communicates with a transverse opening 3. Arranged within the slot 2 and engaging the threads thereof is a bolt 4, the same having the ends of its shank preferably cone-shaped to be received within one of a number of spaced cone-shaped depressions 5 provided in one of the faces of a removable handle bar 6. The bar 6, of course, is adapted to be inserted through the opening 3, and the depressions permit of the said handle being retained upon the shank in a position-whereby the desired amount of leverage may be obtained by the operator. The opposite end of the shank 1 is formed with a centrally arranged reduced rectangular extension 7, the lower wall of which is rounded, and the said extension is provided with a transverse opening 8. Either arranged upon the shank 1, above its rectangular extension, or formed therewith is an annular flange 9, the same, in the showing of the drawings, being illus trated in the form of a flat disk, and being sustained against removal in the direction of the extension 7 through the medium of a pin 10 which passes through a suitable opening in the extension 7 at its juncture with the shank proper. Arranged upon the rounded shank 1 and having one of its ends bearing against the flanged disk 9 is a helical spring 11, and also arranged upon the said shank 9 is a sleeve 12, the said sleeve Patented July '7, 1914.

having one of its ends formed with a reduced extension 13, thus providlng the inner bore of the sleeve with a shoulder 14 against which the second end convolution of the spring 11 presses. The spring, it will thus be noted, at all times exerts a tension between the flange 9 and the shoulder 1 L to force the sleeve 12 u on the shank 1 in the direction of the ham le bar 6. In order to limit the movement of the said sleeve when the same is influenced by the spring 11, I provide the shank 1 with a collar 15 which is preferably removably eonnectedtherewith through the medium of a pm 16 which extends through openings in the collar and an opening in the s ank. The distance between the disk and the collar 15 approximately equals the length of the sleeve 12, so that the portion 7 of the shank, beyond the d1sk 9 will extend beyond the sleeve when the said sleeve contacts with the collar.

The enlarged open end of the sleeve is provided, at diametrically opposite points, with L-shaped or bayonet slots 17, the transverse openings of the same being arranged in an opposite direction from their longitudinal openings, and pivotally connected, as at 18, to the rectangular extension 7 of the shank 1 is a universal member or link 19. The link has both of its ends bifurcated or slotted, but in opposite directions, the rectangular extension 7 being arranged within one of the said slots and pivoted to the opposite arms of the link provided by the slot, while arranged within the second slot is the ear 20 of a socket member 21. The arms 22 provided by the slot between which the car 20 of the socket member 21 is arranged, have the walls of their opening through which the pivot 23 extends, provided with registering notches 24-, and the wall of the opening in the ear 20 is likewise provided with a notch 25.- The pin 23 has one of its ends provided with a head 26, and its shank,

at the opposite end of the said pin, is

formed with a lug or bit 27, which is adapted to be passed through the notches 24; and 25 when the same is brought to register so that its bit will con-tact with one of the outer faces of one of the arms 22. In order to provide for the reception of the bit, when the same is in such a rotated position, the outer face of each of the arms is notched or provided with a depression 28 which is arranged at a right angle to the notches 24, and also to retain the bit within one of the said depressions I provide a helical spring 29 which is arranged upon the shank of the pin 23 adjacent its head 26, and is adapted to exert a pressure between one of the outer faces of one of the arms 22 and the said head 26, and so retain the bit 27 within the depression 28. When the socket member 21 is moved to bring the notch 25 in' alinement with the notches 24 and the pin 23 rounded portion of the socket is formed with laterally projecting lugs 30, the said lugs being of a size to be received within the bayonet slots 17 when the shank 1 is drawn upwardly of the sleeve 12, and it will be noted that by rotating the shank upon the sleeve the lugs 30 will be brought to within the longitudinal passages of the L-shaped slots, and s0 securely retain the socket member 21 upon the shank and sleeve, and in a position to permit of the same being rotated upon an object in one direction. It is to be understood that any number of socket members 21 may be employed, each of which, however, has a different sized and shaped bore or engaging portion, and it will be noted that when the shank 1 is rotated upon the sleeve to permit of the spring 11 forcing the universal member or link 9 out of the said sleeve, the socket may be retained at any desired angle with relation to the shank and operated in such position, so that the wrench may be successfully employed in corners or in close places where it is impossible to properly operate the same when the members thereof are disposed all in the same longitudinal relation to each other.

From the above description, taken in conshank and socket member, a sleeve, and

means for connecting the sleeve with the socket.

2. In a wrench of the class set forth, a shank, a socket, a link pivotally connected with the shank, a pin having a bit connecting the socket with the link, a spring between the pin and the spring, said spring adapted to lock the pin upon the link and to automatically remove the pin from the link when the pin is rotated upon the link in one direction, and a movable sleeve upon the shank adapted to engage with the socket to look the socket to sustain the same longitudinally of the shank.

3. In a wrench of the class set forth, a shank, a sleeve upon the shank, a link pivotally connected with the shank, a socket pivotally connected with the link, laterally extending lugs upon the socket, and a sleeve having bayonet slots adapted to receive the said lugs to lock the socket upon the sleeve.

4. A wrench including a shank, a flange adjacent one end of the shank, a spring upon the shank and contacting with the flange, a sleeve having a reduced portion forming a shoulder arranged upon the shank and having said shoulder contacted by the spring, a stop collar removably connected with the shank for limiting the move- ,in presence of ment of the sleeve by the spring, said sleeve having its end provided with bayonet slots, 15 a socket having lateral lugs, a universal connection between the end of the shank and the socket, and the said lugs being arranged I to be received Within the bayonet slots of the sleeve. 20

i In testimony whereof I aifix my signature two witnesses. FRANK JOSEF BOJAS. Witnesses:

JOSEPH J. STANELE,

JOSEPH VINN. 

